.center-preview-container {
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    padding: 40px 0 20px 190px;
    -webkit-flex: 1;
    flex: 1;
    overflow-y: auto;
    background-color: #f5f7fa;

    .main-preview-container {
        width: 375px;
        height: 667px;
        background-color: #f5f7fa;
        border: 1px solid #e6e6e6;
        overflow-y: auto;
    }
}

.field-center {
    height: 100%;
}